ps2-serial-mouse-adapter icon indicating copy to clipboard operation
ps2-serial-mouse-adapter copied to clipboard

Tips for debugging

Open mudmin opened this issue 1 year ago • 6 comments

mudmin avatar Jan 06 '24 23:01 mudmin

Are there any tips for debugging this? I've spent a fair amount of time on it and I'm not getting anywhere. As someone said on pcbway, the 232 chip gets pretty toasty.

Cutemouse recognizes the device itself, however none of the tests work on checkit.

When I plug my Logitech mouse in, the blue light comes on on the arduino, but not on the other mice.

mudmin avatar Jan 06 '24 23:01 mudmin

You can just connect to serial monitor in your android studio and analyze the output. There are also more in depth tutorials how to to debug through the serial port. However, there is no point for debugging if your 232 chip gets hot. It would be like measuring a pulse on a corpse :)

Your issue could be a duplicate of #8. Which revision of the PCB do you use? Which 232 IC? Unfortunately there are also a lot of fakes out there. I had a delivery where 10 chips looked the same, but only 3 of them really worked in a circuit.

necroware avatar Jan 07 '24 09:01 necroware

Thanks so much for the response. I love your channel. I thought when I made the first one, I had tried to hook it to the serial monitor. I'd have to try that again.

Regarding the board and chip... Maxim Max232CPE +2317 Board Rev .8

Are there any issues with those?

mudmin avatar Jan 07 '24 11:01 mudmin

Hm, there was an issue with hot chips as mentioned in #8, but the Rev. 0.8 should have fixed that. Are you sure to use exact the required capacitor values? I'd also double check the polarity of the caps. The 232 chip has to remain barely warm if at all and if it gets hot there is an issue with the charge pump or with the chip itself.

necroware avatar Jan 07 '24 12:01 necroware

I used 1uf caps. I at least socketed this 232, so I have room to experiment. I will pull it apart, check and report back. Thanks so much for your help.

Side note... I'm AnotherMaker on youtube. Your XT-IDE stuff has been super helpful to me. I talked about your series in this... You may also find this board helpful when you don't want to use a network card. https://youtu.be/WTBoUmHI0pU

mudmin avatar Jan 07 '24 15:01 mudmin

@mudmin I built a couple of those Mini ISA Boards, they are fantastic. The original thread and maker can be found here: https://www.vogons.org/viewtopic.php?f=46&t=82499

sweetlilmre avatar Jun 17 '24 13:06 sweetlilmre